Cita APA (7a ed.)

Firestone, R., Catlett, J., & Firestone, L. A. (2012). The self under siege: Voice therapy and differentiation. Routledge.

Cita Chicago Style (17a ed.)

Firestone, Robert, Joyce Catlett, y Lisa A. Firestone. The Self Under Siege: Voice Therapy and Differentiation. New York: Routledge, 2012.

Cita MLA (9a ed.)

Firestone, Robert, et al. The Self Under Siege: Voice Therapy and Differentiation. Routledge, 2012.